﻿namespace YiSha.Service.OrganizationManage;

public class DepartmentService : RepositoryFactory
{
    #region 获取数据
    public async Task<List<DepartmentEntity>> GetList(DepartmentListParam param)
    {
        var expression = ListFilter(param);
        var list = await this.BaseRepository().FindList(expression);
        return list.OrderBy(p => p.DepartmentSort).ToList();
    }

    public async Task<DepartmentEntity> GetEntity(long id)
    {
        return await this.BaseRepository().FindEntity<DepartmentEntity>(id);
    }

    public async Task<int> GetMaxSort()
    {
        object result = await this.BaseRepository().FindObject("SELECT MAX(DepartmentSort) FROM SysDepartment");
        int sort = result.ParseToInt();
        sort++;
        return sort;
    }

    /// <summary>
    /// 部门名称是否存在
    /// </summary>
    /// <param name="entity"></param>
    /// <returns></returns>
    public bool ExistDepartmentName(DepartmentEntity entity)
    {
        var expression = LinqExtensions.True<DepartmentEntity>();
        expression = expression.And(t => t.BaseIsDelete == 0);
        if (entity.Id.IsNullOrZero())
        {
            expression = expression.And(t => t.DepartmentName == entity.DepartmentName && t.ParentId == entity.ParentId);
        }
        else
        {
            expression = expression.And(t => t.DepartmentName == entity.DepartmentName && t.ParentId == entity.ParentId && t.Id != entity.Id);
        }
        return this.BaseRepository().IQueryable(expression).Count() > 0 ? true : false;
    }

    /// <summary>
    /// 是否存在子部门
    /// </summary>
    /// <param name="id"></param>
    /// <returns></returns>
    public bool ExistChildrenDepartment(long id)
    {
        var expression = LinqExtensions.True<DepartmentEntity>();
        expression = expression.And(t => t.ParentId == id);
        return this.BaseRepository().IQueryable(expression).Count() > 0 ? true : false;
    }
    #endregion

    #region 提交数据
    public async Task SaveForm(DepartmentEntity entity)
    {
        if (entity.Id.IsNullOrZero())
        {
            await entity.Create();
            await this.BaseRepository().Insert(entity);
        }
        else
        {
            await entity.Modify();
            await this.BaseRepository().Update(entity);
        }
    }

    public async Task DeleteForm(string ids)
    {
        var db = await this.BaseRepository().BeginTrans();
        try
        {
            long[] idArr = TextHelper.SplitToArray<long>(ids, ',');
            await db.Delete<DepartmentEntity>(idArr);
            await db.CommitTrans();
        }
        catch
        {
            await db.RollbackTrans();
            throw;
        }
    }
    #endregion

    #region 私有方法
    private Expression<Func<DepartmentEntity, bool>> ListFilter(DepartmentListParam param)
    {
        var expression = LinqExtensions.True<DepartmentEntity>();
        if (param != null)
        {
            if (!param.DepartmentName.IsEmpty())
            {
                expression = expression.And(t => t.DepartmentName.Contains(param.DepartmentName));
            }
        }
        return expression;
    }
    #endregion
}